25. Drake – The Motto

INDIANAPOLIS, IN - FEBRUARY 03: Rapper Drake performs at ESPN The Magazine's "NEXT" Event on February 3, 2012 in Indianapolis, Indiana. (Photo by Theo Wargo/Getty Images for ESPN)

24. Hot Chelle Rae - Honestly

(Photo by David Livingston/Getty Images)

23. Pitbull – Back In Time

(Photo by David Becker/Getty Images)

22. Maroon 5 - Payphone

CHICAGO, IL - MARCH 01: Maroon 5 performs Escape To Total Rewards at Union Station on March 1, 2012 in Chicago, Illinois. (Photo by Daniel Boczarski/Getty Images for Caesars Entertainment)

21. Drake ft. Rihanna – Take Care

LOS ANGELES, CA - FEBRUARY 20: Singer Rihanna and Rapper Drake perform during half-time during the 2011 NBA All-Star Game on February 20, 2011 at the Staples Center in Los Angeles, California. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2011 NBAE (Photo by Jesse D. Garrabrant/NBAE via Getty Images)

20. Pitbull ft. Chris Brown – International Love

ORLANDO, FL - FEBRUARY 26: Recording artists Pitbull (L) and Chris Brown perform at halftime during the 2012 NBA All-Star Game at the Amway Center on February 26, 2012 in Orlando, Florida. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Mike Ehrmann/Getty Images)

19. Carly Rae Jepsen – Call Me Maybe

LOS ANGELES, CA - APRIL 13: Singer Carly Rae Jessop sings God Bless America during the game between the San Diego Padres and the Los Angeles Dodgers at Dodger Stadium on April 13, 2012 in Los Angeles, California. (Photo by Harry How/Getty Images)

18. Flo Rida – Good Feelin

MELBOURNE, AUSTRALIA - APRIL 15: Musician Flo Rida arrives at the 2012 Logie Awards at the Crown Palladium on April 15, 2012 in Melbourne, Australia. (Photo by Ryan Pierse/Getty Images)

17. Gavin DeGraw – Not Over You

NEW YORK, NY - APRIL 18: Gavin DeGraw performs on stage during the 3rd annual Origins Rocks Earth Month concert at Webster Hall on April 18, 2012 in New York City. (Photo by D Dipasupil/Getty Images)

16. Taylor Swift – Eyes Open

LAS VEGAS, NV - APRIL 01: Singer Taylor Swift accepts the Entertainer Of The Year Award onstage at the 47th Annual Academy Of Country Music Awards held at the MGM Grand Garden Arena on April 1, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

15. Justin Bieber - Boyfriend

NEW YORK, NY - APRIL 27: Singer Justin Beiber attends the Tribeca Disruptive Innovation Awards during the 2012 Tribeca Film Festival at the NYU Paulson Auditorium on April 27, 2012 in New York City. (Photo by John Lamparski/Getty Images)

14. Gotye – Somebody I Used To Know

INDIO, CA - APRIL 15: Musician Wouter "Wally" De Backer aka Gotye performs during Day 3 of the 2012 Coachella Valley Music & Arts Festival held at the Empire Polo Club on April 15, 2012 in Indio, California. (Photo by Michael Buckner/Getty Images for Coachella)

13. Calvin Harris – Feels So Close

LONDON, ENGLAND - DECEMBER 03: Calvin Harris attends day one of Jingle Bell Ball at O2 Arena on December 3, 2011 in London, England. (Photo by Tim Whitby/Getty Images)

12. Katy Perry – Part Of Me

HOLLYWOOD, CA - APRIL 18: Singer Katy Perry arrives at the 2012 ASCAP POP Music Awards at the Hollywood Renaissance Hotel on April 18, 2012 in Hollywood, California. (Photo by John M. Heller/Getty Images)

11. Havanna Brown – We Run The Night

ORLANDO, FL - FEBRUARY 26: Recording artist Pitbull performs at halftime during the 2012 NBA All-Star Game at the Amway Center on February 26, 2012 in Orlando, Florida. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Ronald Martinez/Getty Images)

10. Gym Class Heros – Ass Back Home

AUBURN HILLS, MI - APRIL 5: Travie McCoy and the Gym Class Heroes perform at halftime of a game between the Washington Wizards and Detroit Pistons on April 5, 2012 at The Palace of Auburn Hills in Auburn Hills, Michigan. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2012 NBAE (Photo by J. Dennis/Einstein/NBAE via Getty Images)

9. Karmin – Brokenhearted

HOLLYWOOD, CA - APRIL 11: Singer Amy Heidemann of Karmin attends the Third Annual ELLE Women In Music Event at Avalon on April 11, 2012 in Hollywood, California. (Photo by Michael Buckner/Getty Images)

8. B.O.B. – So Good

NEW YORK, NY - FEBRUARY 29: Rapper B.O.B attends BET's Rip the Runway 2012 at Hammerstein Ballroom on February 29, 2012 in New York City. (Photo by Andrew H. Walker/Getty Images)

7. Nicki Minaj – Starships

LONDON, ENGLAND - APRIL 19: Nicki Minaj signs copies of her number one album 'Pink Friday: Roman Reloaded' at HMV Whiteleys on April 19, 2012 in London, England. (Photo by Danny Martindale/Getty Images)

6. One Direction –What Makes You Beautiful

CORRECTION-DATE
(From R to L) Zayn Malik, Liam Payne, Niall Horan, Louis Tomlinson and Harry Styles of the British-Irish boy band One Direction performs during the group's concert at the St James theatre in Wellington on April 22, 2012. One Direction comprise of four young Britons and an Irishman, with their first album making its debut at number one on the US charts last month -- a feat never before achieved by a British band. AFP PHOTO / MARTY MELVILLE (Photo credit should read Marty Melville/AFP/Getty Images)

5. Adele – Rumor Has It

British singer-songwriter Adele celebrates with the British Album of the Year award for her album "21" at the BRIT Awards 2012 in London on February 21, 2012. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images)

4. Train – Drive By

LAS VEGAS, NV - OCTOBER 29: Train singer Pat Monahan performs at the Andre Agassi Foundation for Education's 16th Grand Slam for Children benefit concert at the Wynn Las Vegas October 29, 2011 in Las Vegas, Nevada. The event raises funds to help improve education for underserved youth in the Las Vegas community. (Photo by Ethan Miller/Getty Images)

3. Flo Rida – Wild Ones

MELBOURNE, AUSTRALIA - APRIL 15: Musician Flo Rida arrives at the 2012 Logie Awards at the Crown Palladium on April 15, 2012 in Melbourne, Australia. (Photo by Ryan Pierse/Getty Images)

2. Fun. – We Are Young

NEW YORK, NY - NOVEMBER 30: (L-R) Andrew Dost, Nate Ruess and Jack Antonoff of the band Fun attend Spotify knocks it out of the park at Stephen Weiss Studio on November 30, 2011 in New York City. (Photo by Charles Eshelman/Getty Images for Spotify)

1. The Wanted – Glad You Came

NEW YORK, NY - APRIL 25: (L-R) Siva Kaneswaran, Jay McGuiness, Max George, Tom Parker and Nathan Sykes of The Wanted visit "fuse Live" at fuse Studios on April 25, 2012 in New York City. (Photo by Neilson Barnard/Getty Images)